We now know where Waldo is, and he's been hiding on people's skin in the form of these Where's Waldo tattoos.
The popular red-and-white-striped character is the current muse of tattoo fanatics and body art enthusiasts; these individuals are finding the most peculiar of places to hide their elusive tattoos. Some people have cleverly hidden their Where's Waldo tattoos inside of much larger designs, paying homage to the children's book and forcing onlookers to search for him among other intricate designs. There are also some who have hidden away Waldo behind their ears and below their waistbands.
Now all we have to do is find out where the equally elusive Carmen Sandiego is. She's probably tattooed onto someone's belly button.